Can I program a keyless entry remote for An STS 08 on my 05?
It looks a lot better than the one I have.
And if do buy it can I program it by myself as per the user manual or I have to go to the dealer?
I don't know but I suspect it would be fine. My wife's 2007 manual shows both.
Another cool thing about the new remote is that it contains a key. If you're serious about using an '08 remote, you'll want a copy of your key for it, too. I'd suggest one the sites like GM Parts Direct for a blank, etc.
I dont think the fob works with the 05, I bought 1 and it wouldnt see it, there is a thread somewhere on here that says that it will not work on the 05, but I will keep checking here to see it someone got it to match up.